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Finding the Fourth Proportional to 339,155.70, 508,733.55 and 102,534.90

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Solution

The fourth proportional to 339,155.70, 508,733.55 and 102,534.90 is: 153,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,155.70 : 508,733.55 = 102,534.90 : x
  2. Step 2: Convert to fraction form
    339,155.70/508,733.55 = 102,534.90/x
  3. Step 3: Cross multiply
    339,155.70x = 508,733.55 × 102,534.90
  4. Step 4: Simplify right side
    339,155.70x = 52,162,943,675.90
  5. Step 5: Solve for x
    x = 52,162,943,675.90/339,155.70
  6. Step 6: Final answer
    x = 153,802.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.